Solar system tests in modified teleparallel gravity

In this paper, we study different Solar System tests in a modified Teleparallel gravity theory based on an arbitrary function f(T,B) which depends on the scalar torsion T and the boundary term B. To do this, we first find new perturbed spherically symmetric solutions around Schwarzschild for differe...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2020-10, Vol.2020 (10)
Main Authors: Bahamonde, Sebastian, Jackson, Levi Said, Zubair, M
Format: Article
Language:English
Subjects:
Cosmology
Gravitation
Perihelions
Red shift
Solar system
Online Access:Get full text
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Summary:In this paper, we study different Solar System tests in a modified Teleparallel gravity theory based on an arbitrary function f(T,B) which depends on the scalar torsion T and the boundary term B. To do this, we first find new perturbed spherically symmetric solutions around Schwarzschild for different power-law forms of the arbitrary Lagrangian. Then, for each model we calculated the photon sphere, perihelion shift, deflection of light, Cassini experiment, Shapiro delay and the gravitational redshift. Finally, we confront these computations with different known experiments from these Solar System tests to put different bounds on the mentioned models. We then conclude that f(T,B) is compatible with these Solar System experiments with a wide range of parameters which are relevant for cosmology.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2020/10/024